30 research outputs found
None of your business: the case for a paradigm shift in teaching family business in UK business schools
Objectives: This conceptual paper argues that a new paradigm is needed for UK Business Schools which embraces an oft neglected, yet economically vital, stakeholder group, namely family business.Prior Work: Builds on discussions in the extent literature about failures of Business Schools to address modern needs.Approach: A stakeholder approach, building on nominal stakeholder theory to justify a change to the teaching paradigm in business schools.Results: Not applicable.Implications: Business Schools in the UK need to begin to engage with family businesses through embracing the next generation from families in business. Policy needs to be developed that will support the next generation in a positive way by teaching about the family in business. Value: Stimulate discussion about key stakeholder and prompt review of neglect of this key area of business study in UK
MTO1 mediates tissue specificity of OXPHOS defects via tRNA modification and translation optimization, which can be bypassed by dietary intervention
Mitochondrial diseases often exhibit tissue-specific pathologies, but this phenomenon is poorly understood. Here we present regulation of mitochondrial translation by the Mitochondrial Translation Optimization Factor 1, MTO1, as a novel player in this scenario. We demonstrate that MTO1 mediates tRNA modification and controls mitochondrial translation rate in a highly tissue-specific manner associated with tissue-specific OXPHOS defects. Activation of mitochondrial proteases, aberrant translation products, as well as defects in OXPHOS complex assembly observed in MTO1 deficient mice further imply that MTO1 impacts translation fidelity. In our mouse model, MTO1-related OXPHOS deficiency can be bypassed by feeding a ketogenic diet. This therapeutic intervention is independent of the MTO1-mediated tRNA modification and involves balancing of mitochondrial and cellular secondary stress responses. Our results thereby establish mammalian MTO1 as a novel factor in the tissue-specific regulation of OXPHOS and fine tuning of mitochondrial translation accurac
CUP-1 Is a Novel Protein Involved in Dietary Cholesterol Uptake in Caenorhabditis elegans
Sterols transport and distribution are essential processes in all multicellular organisms. Survival of the nematode Caenorhabditis elegans depends on dietary absorption of sterols present in the environment. However the general mechanisms associated to sterol uptake in nematodes are poorly understood. In the present work we provide evidence showing that a previously uncharacterized transmembrane protein, designated Cholesterol Uptake Protein-1 (CUP-1), is involved in dietary cholesterol uptake in C. elegans. Animals lacking CUP-1 showed hypersensitivity to cholesterol limitation and were unable to uptake cholesterol. A CUP-1-GFP fusion protein colocalized with cholesterol-rich vesicles, endosomes and lysosomes as well as the plasma membrane. Additionally, by FRET imaging, a direct interaction was found between the cholesterol analog DHE and the transmembrane âcholesterol recognition/interaction amino acid consensusâ (CRAC) motif present in C. elegans CUP-1. In-silico analysis identified two mammalian homologues of CUP-1. Most interestingly, CRAC motifs are conserved in mammalian CUP-1 homologous. Our results suggest a role of CUP-1 in cholesterol uptake in C. elegans and open up the possibility for the existence of a new class of proteins involved in sterol absorption in mammals
A Research Agenda for Helminth Diseases of Humans: Intervention for Control and Elimination
Recognising the burden helminth infections impose on human populations, and particularly the poor, major intervention programmes have been launched to control onchocerciasis, lymphatic filariasis, soil-transmitted helminthiases, schistosomiasis, and cysticercosis. The Disease Reference Group on Helminth Infections (DRG4), established in 2009 by the Special Programme for Research and Training in Tropical Diseases (TDR), was given the mandate to review helminthiases research and identify research priorities and gaps. A summary of current helminth control initiatives is presented and available tools are described. Most of these programmes are highly dependent on mass drug administration (MDA) of anthelmintic drugs (donated or available at low cost) and require annual or biannual treatment of large numbers of at-risk populations, over prolonged periods of time. The continuation of prolonged MDA with a limited number of anthelmintics greatly increases the probability that drug resistance will develop, which would raise serious problems for continuation of control and the achievement of elimination. Most initiatives have focussed on a single type of helminth infection, but recognition of co-endemicity and polyparasitism is leading to more integration of control. An understanding of the implications of control integration for implementation, treatment coverage, combination of pharmaceuticals, and monitoring is needed. To achieve the goals of morbidity reduction or elimination of infection, novel tools need to be developed, including more efficacious drugs, vaccines, and/or antivectorial agents, new diagnostics for infection and assessment of drug efficacy, and markers for possible anthelmintic resistance. In addition, there is a need for the development of new formulations of some existing anthelmintics (e.g., paediatric formulations). To achieve ultimate elimination of helminth parasites, treatments for the above mentioned helminthiases, and for taeniasis and food-borne trematodiases, will need to be integrated with monitoring, education, sanitation, access to health services, and where appropriate, vector control or reduction of the parasite reservoir in alternative hosts. Based on an analysis of current knowledge gaps and identification of priorities, a research and development agenda for intervention tools considered necessary for control and elimination of human helminthiases is presented, and the challenges to be confronted are discussed
Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTICâHF: baseline characteristics and comparison with contemporary clinical trials
Aims:
The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTICâHF) trial. Here we describe the baseline characteristics of participants in GALACTICâHF and how these compare with other contemporary trials.
Methods and Results:
Adults with established HFrEF, New York Heart Association functional class (NYHA)ââ„âII, EF â€35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokineticâguided dosing: 25, 37.5 or 50âmg bid). 8256 patients [male (79%), nonâwhite (22%), mean age 65âyears] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NTâproBNP 1971âpg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTICâHF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressureâ<â100âmmHg (n = 1127), estimated glomerular filtration rate <â30âmL/min/1.73 m2 (n = 528), and treated with sacubitrilâvalsartan at baseline (n = 1594).
Conclusions:
GALACTICâHF enrolled a wellâtreated, highârisk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation
None of your business: the case for a paradigm shift in teaching family business in UK business schools
Objectives: This conceptual paper argues that a new paradigm is needed for UK Business Schools which embraces an oft neglected, yet economically vital, stakeholder group, namely family business.Prior Work: Builds on discussions in the extent literature about failures of Business Schools to address modern needs.Approach: A stakeholder approach, building on nominal stakeholder theory to justify a change to the teaching paradigm in business schools.Results: Not applicable.Implications: Business Schools in the UK need to begin to engage with family businesses through embracing the next generation from families in business. Policy needs to be developed that will support the next generation in a positive way by teaching about the family in business. Value: Stimulate discussion about key stakeholder and prompt review of neglect of this key area of business study in UK
Exploring Scottish family businesses: economy, geography and community
The results from this debate will provide a starting point for future theoretical and action research and a key aim of the proposed discussion paper is to encourage interested parties with diverse expertise to contribute and highlight their interest in future participation. The implications of this debate are profound and will impact upon Scotland in a variety of ways in terms of economic, cultural and community development. The role of those different groups involved - entrepreneurs, policy makers, practitioners, researchers and educators - will be key. The value of this paper lies primarily in its contribution to a debate and the call for further research in an area of key importance to the Scottish and, indeed, the UK economy.div_BaM9pub1071pub
Teaching family business: The case for a paradigm shift in UK business schools
AbstractObjectives: This conceptual paper argues that a new paradigm is needed for UK Business Schools which embraces an oft neglected, yet economically vital, stakeholder group, namely family business.Prior Work: Builds on discussions in the extent literature about failures of Business Schools to address modern needs.Approach: A stakeholder approach, building on nominal stakeholder theory to justify a change to the teaching paradigm in business schools.Results: Not applicable.Implications: Business Schools in the UK need to begin to engage with family businesses through embracing the next generation from families in business. Policy needs to be developed that will support the next generation in a positive way by teaching about the family in business. Value: Stimulate discussion about key stakeholder and prompt review of neglect of this key area of business study in UK